Whats the easiest way to gain weight im 5"2 and only weigh 110lb can exercising help me? I've tried drinking the protein shakes but they not ar working

Why? 110# at 5'2" is just right. I don't advise trying to gain weight. We come in a variety of sizes and shapes. Self acceptance is critical for happiness and health. Enjoy your body the way it is. That said, exercise is always a good idea.